472921991946 has 48 divisors (see below), whose sum is σ = 1067179995648. Its totient is φ = 151219807200.

The previous prime is 472921991933. The next prime is 472921991957. The reversal of 472921991946 is 649199129274.

472921991946 is a `hidden beast` number, since 472 + 9 + 21 + 99 + 19 + 46 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4953370 + ... + 5047941.

It is an arithmetic number, because the mean of its divisors is an integer number (22232916576).

Almost surely, 2^472921991946 is an apocalyptic number.

472921991946 is an abundant number, since it is smaller than the sum of its proper divisors (594258003702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

472921991946 is a wasteful number, since it uses less digits than its factorization.

472921991946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001427 (or 10001424 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 472921991946 in words is "four hundred seventy-two billion, nine hundred twenty-one million, nine hundred ninety-one thousand, nine hundred forty-six".